Inorganic Solid Phases

LaAl3(AsO4)2(OH)6 (LaAl3[AsO4]2[OH]6) Crystal Structure

General Information

  • Phase Label(s): LaAl3[AsO4]2[OH]6
  • Structure Class(es):
  • Classification by Properties:
  • Mineral Name(s): arsenoflorencite-(La)
  • Pearson Symbol: hR60
  • Space Group: 166
  • Phase Prototype: KAl3[SO4]2[OH]6
  • Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Bruker AXS X8 APEX II (determination of structural parameters), X-rays, Mo Kα; λ = 0.071073 nm (determination of cell and structural parameters), T = 293(2) K (determination of cell and structural parameters)
  • Phase Class(es):
  • Compound Class(es): arsenate, hydroxide
  • Interpretation Detail(s): complete structure determined, least-squares refinement; 293 reflections, R = 0.0116; wR = 0.0263
  • Sample Detail(s): arsenofluorencite sample from Russia, Urals, Kozhim deposit, electron microprobe analysis; (La0.56Ce0.18Nd0.12Pr0.04Sr0.09Ca0.03)(Al2.94Fe0.06)(As1.80P0.21)H5.95O14, single crystal (determination of cell parameters), single crystal, 0.075×0.095×0.135 mm3 (determination of structural parameters)

Substance Summary

  • Standard Formula: LaAl3[AsO4]2[OH]6
  • Alphabetic Formula: Al3[AsO4]2La[OH]6
  • Published Formula: LaAl3(AsO4)2(OH)6
  • Refined Formula: Al2.67As1.74Fe0.33H6LaO14P0.26
  • Wyckoff Sequence: 166,h2ec2b
  • Z Formula Units: 3
  • Density: ρ = 4.22 Mg·m−3

Crystallographic Data

Cell Parameters

Published Data
Standardized Data
Unit Cell
Niggli-Reduced Cell
Space Group
a
b
c
α
β
γ
a/b
b/c
c/a
V

Atom Coordinates

Standardized

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation
Co-ord. No.
Atomic Env.

Published

Site
Element
Wyckoff Symbol
Symmetry
X
Y
Z
Occupation

Displacement Parameters

Isotropic

Site
Published
U [nm2]
Type
Computed
Beq [nm2]

Anisotropic

Site
U11 [nm2]
U22 [nm2]
U33 [nm2]
U12 [nm2]
U13 [nm2]
U23 [nm2]

Powder Pattern

published defraction line
d [Å]
computed diffraction line for Cu Kα
d [nm]
intensity
I [1]
h [1]
k [1]
l [1]
Radiation
Remark

Experimental Details

Reference

3D Interactive Structure

About this content

  • Database name

    PAULING FILE Multinaries Edition – 2012

  • Dataset ID

    sd_1225290

  • Copyright

    ©Springer & Material Phases Data System (MPDS), Switzerland & National Institute for Materials Science (NIMS), Japan, 2016

  • Chief Editor

    Pierre Villars, Material Phases Data System (MPDS), CH-6354 Vitznau, Switzerland

    villars.mpds@bluewin.ch

  • Credits

    SpringerMaterials Release 2016.

    Data generated pre-2002: © Springer & MPDS & NIMS; post-2001: © Springer & MPDS

    All Rights Reserved. Version 2016.10.

    Project Coordinator: Shuichi Iwata

    Section-Editor: Karin Cenzual (Crystal Structures)

  • Cite this content

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